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Author Bagaev, S. N. ♦ Vatnik, S. M. ♦ Vedin, I. A. ♦ Maiorov, A. P. ♦ Pestryakov, E. V. ♦ Osipov, V. V. ♦ Ivanov, M. G. ♦ Solomonov, V. I. ♦ Platonov, V. V. ♦ Orlov, A. N. ♦ Rasuleva, A. V. ♦ Ivanov, V. V. ♦ Kaigorodov, A. S. ♦ Khrustov, V. R. ♦ Shestakov, A. V. ♦ Salkov, A. V.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CERAMICS ♦ CRACKS ♦ DOPED MATERIALS ♦ FRACTURE PROPERTIES ♦ LASERS ♦ MICROHARDNESS ♦ NANOSTRUCTURES ♦ NEODYMIUM ♦ POROSITY ♦ POWDERS ♦ PRESSURE RANGE GIGA PA ♦ PRESSURE RANGE MEGA PA ♦ TEMPERATURE RANGE ♦ VISIBLE RADIATION ♦ WAVELENGTHS ♦ YTTRIUM OXIDES ♦ CHALCOGENIDES ♦ ELECTROMAGNETIC RADIATION ♦ ELEMENTS ♦ HARDNESS ♦ MATERIALS ♦ MECHANICAL PROPERTIES ♦ METALS ♦ OXIDES ♦ OXYGEN COMPOUNDS ♦ PRESSURE RANGE ♦ RADIATIONS ♦ RARE EARTHS ♦ TRANSITION ELEMENT COMPOUNDS ♦ YTTRIUM COMPOUNDS
Abstract We studied mechanical, optical, and lasing parameters of neodymium-doped yttrium oxide ceramics synthesised by using a new technology involving the laser synthesis of nanopowders and their magnetic pulsed compaction. The fracture toughness of ceramics to cracks and its microhardness were measured to be K{sub IC} = 0.9-1.4 MPa m{sup 1/2} and H{sub {nu}} = 11.8 GPa, respectively. Ceramic samples sintered in the temperature range from 1550 to 2050{sup 0}C have the porosity (1-150)x10{sup -4}% and the optical loss coefficient {alpha}{sub 1.07} = 0.03-2.1 cm{sup -1} at a wavelength of 1.07 {mu}m. It is shown that such porosity does not affect the optical loss coefficient of light. Lasing at {approx}1.079 {mu}m with a slope efficiency of 15% was obtained in a 1.1-mm-thick sample pumped by laser diodes. (active media. lasers)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2008-09-30
Publisher Place United States
Journal Quantum Electronics
Volume Number 38
Issue Number 9


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